Stylus



FIG. 1 is a front side view of the stylus. The right side view, left side view and back side view identical to the front side view;

FIG. 2 is a top view of the stylus;

FIG. 3 is a bottom view of the stylus; and,

FIG. 4 is a perspective view of the stylus.

The broken line showings of the stylus are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a stylus, as shown and described. 